| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.69 | 0.08 |
| Feb | 0.93 | 0.86 | 0.07 |
| Mar | 1.82 | 1.79 | 0.03 |
| Apr | 3.40 | 3.32 | 0.08 |
| May | 4.59 | 4.58 | 0.01 |
| Jun | 4.88 | 4.81 | 0.07 |
| Jul | 3.94 | 3.86 | 0.08 |
| Aug | 4.30 | 4.35 | -0.05 |
| Sep | 3.28 | 3.08 | 0.20 |
| Oct | 2.47 | 2.32 | 0.15 |
| Nov | 1.49 | 1.37 | 0.12 |
| Dec | 1.14 | 1.13 | 0.01 |
33.01 | 32.16 | 0.85 |